基于RS-485的智能仪表与PLC串行通讯  

Serial Communication between Intelligent Instrument and PLC Based on RS-485

作　　者：李如甲[1] 程武山[1] 董林[1] 

机构地区：[1]上海工程技术大学,上海201620

出　　处：《仪表技术与传感器》2011年第8期34-36,100,共4页Instrument Technique and Sensor

基　　金：085重点建设学科(JX0906)

摘　　要：采用S7-200PLC作为控制器,介绍了RS-485串行通讯技术和智能仪表-微欧仪的通讯方式,详细分析了微欧仪与PLC之间通讯的硬件连接设计和程序设计。该方案已经被实际应用于某熔断器生产线开发与研究的项目中,达到了提高控制系统的整体稳定性和可靠性的目的。Through adopting S7-200 PLC as controllers,this paper introduced the RS-485 serial communication technology and the communication way of intelligent instrument of micro-ohm.It analyzed the design of hardware connection and programming between PLC and intelligent instrument.The program has been applied to a project of the design of fuse line,and enhanced the overall stability and reliability of the control system.

关 键 词：智能仪表 RS-485 PLC 

分 类 号：TP216[自动化与计算机技术—检测技术与自动化装置]